(architeture) a tall cylindrical vertical upright and used to support a structure

a vertical cylindrical structure standing alone and not supporting anything (such as a monument)

a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands

an article giving opinions or perspectives

a line of (usually military) units following one after another

a linear array of numbers one above another

anything tall and relatively thin that approximates the shape of a column or tower; "the test tube held a column of white powder"; "a tower of dust rose above the horizon"; "a thin pillar of smoke betrayed their campsite"